Quasi Connectivity: why are the pistons active
Wating approval

Post id:73

Post created :2023-02-01 22:01:55

why are the pistons active

​ https://preview.redd.it/0m7w7ccignfa1.png?width=1920&format=png&auto=webp&v=enabled&s=96943ef6ad8194c63410a988f6c2cfa407fd9289

Quasi Connectivity: Could someone please explain this interaction to me?
Wating approval

Post id:72

Post created :2023-01-27 00:53:20

Could someone please explain this interaction to me?

Quasi Connectivity: If someone can tell me why the dropper doesn't work when placed where I want it to be, but when placed a little lower when I was testing, drops twice when first activated and twice later?
Wating approval

Post id:71

Post created :2023-01-25 04:45:51

If someone can tell me why the dropper doesn't work when placed where I want it to be, but when placed a little lower when I was testing, drops twice when first activated and twice later?

Quasi Connectivity: is this is an Intentional behavior?
Wating approval

Post id:70

Post created :2023-01-15 07:29:35

is this is an Intentional behavior?

Quasi Connectivity: uuhm?!?! whut??
Approved

Post id:69

Post created :2023-01-05 16:14:11

uuhm?!?! whut??

​ https://reddit.com/link/1042ubf/video/7onq5xaq19aa1/player

Quasi Connectivity: Why would this piston remain powered after i press the button? Only after causing a block update near the piston would it retract properly. What am I missing here? Java 1.19.3
Approved

Post id:67

Post created :2023-01-03 11:37:22

Why would this piston remain powered after i press the button? Only after causing a block update near the piston would it retract properly. What am I missing here? Java 1.19.3

Quasi Connectivity: I just wanna say that i hate quasi-connectivity (so far). "What happened" is in the comments.
Approved

Post id:66

Post created :2022-11-23 18:00:50

I just wanna say that i hate quasi-connectivity (so far). "What happened" is in the comments.

Quasi Connectivity: Total redstone noob-Why is this happening? Why wont they retract when I remove the power source?
Approved

Post id:65

Post created :2022-11-20 06:06:53

Total redstone noob-Why is this happening? Why wont they retract when I remove the power source?

Quasi Connectivity: Why does the dispenser only work when i place a new piece of redstone dust?
Approved

Post id:64

Post created :2022-11-14 16:00:48

Why does the dispenser only work when i place a new piece of redstone dust?

Quasi Connectivity: Is this how Redstone torch keys work? If so why does the second one not work and how have I NEVER seen a small design like this?
Approved

Post id:63

Post created :2022-11-05 17:03:54

Is this how Redstone torch keys work? If so why does the second one not work and how have I NEVER seen a small design like this?

Quasi Connectivity: Give a use to this
Approved

Post id:62

Post created :2022-10-31 00:00:01

Give a use to this

It seems pretty useless, 2x2x3 Here is the order, TOP: Redstone Block MID: Slime LAST: Sticky Piston https://preview.redd.it/7vzhrwv281x91.png?width=1920&format=png&auto=webp&v=enabled&s=ebff351e09b30e2a6cc0ca9f0dd83e80964ac2da

Quasi Connectivity: Can someone explain to me how this works?
Approved

Post id:60

Post created :2022-10-29 21:01:09

Can someone explain to me how this works?

Quasi Connectivity: how does this work?
Approved

Post id:59

Post created :2022-10-23 13:14:05

how does this work?

​ https://preview.redd.it/tpfupdra2kv91.png?width=2560&format=png&auto=webp&v=enabled&s=1be5acb644cf45e017d7dab1964ab3f63d8e4850

Quasi Connectivity: what is this called? that redstone powers both pistons below it? and the bottom piston is only powered when the top block is also a piston.
Approved

Post id:58

Post created :2022-10-22 17:10:31

what is this called? that redstone powers both pistons below it? and the bottom piston is only powered when the top block is also a piston.

Quasi Connectivity: update to my previous post here: i tried the ideas in the comments (replace block under redstone torch with target, and place repeater before the block respectively) and it works, however it seems to instantly retract in, any idea how to fix this? (for reference, i am making an exit to a bunker)
Approved

Post id:57

Post created :2022-10-09 08:39:50

update to my previous post here: i tried the ideas in the comments (replace block under redstone torch with target, and place repeater before the block respectively) and it works, however it seems to instantly retract in, any idea how to fix this? (for reference, i am making an exit to a bunker)

Quasi Connectivity: ahh,.. Java redstone being broken again...
Approved

Post id:56

Post created :2022-09-24 08:33:32

ahh,.. Java redstone being broken again...

Quasi Connectivity: Can someone explain why this is happing please I am dumb
Approved

Post id:55

Post created :2022-09-22 23:01:35

Can someone explain why this is happing please I am dumb

Quasi Connectivity: Why does this dispenser not activate?
Approved

Post id:54

Post created :2022-09-17 09:58:20

Why does this dispenser not activate?

The right one doesn't activate, all the others do. (when the torch turns on) https://preview.redd.it/lve2g4uf6eo91.png?width=932&format=png&auto=webp&v=enabled&s=9c43b438faa6371c97ab7caf8d30182688a6769b

Quasi Connectivity: (mostly) instant piston-redstone line
Wating approval

Post id:61

Post created :2022-09-12 04:50:00

(mostly) instant piston-redstone line

Quasi Connectivity: [deleted by user]
Approved

Post id:53

Post created :2022-09-08 01:11:38

[deleted by user]

[removed]

Quasi Connectivity: Pls tell me how this is possible 😭😭😭
Approved

Post id:52

Post created :2022-09-06 07:37:56

Pls tell me how this is possible 😭😭😭

Quasi Connectivity: Why does the bottom redstone "power" the bottom piston in Mumbo Jumbo's Block Swapper?
Approved

Post id:51

Post created :2022-09-04 21:01:13

Why does the bottom redstone "power" the bottom piston in Mumbo Jumbo's Block Swapper?

Quasi Connectivity: Help, this piston not retracting
Approved

Post id:50

Post created :2022-08-30 14:03:16

Help, this piston not retracting

Quasi Connectivity: What is this Behavior?
Approved

Post id:49

Post created :2022-08-27 05:00:29

What is this Behavior?

Quasi Connectivity: Has anyone else discovered this weird Sculk Sensor behaviour?
Approved

Post id:48

Post created :2022-08-20 14:41:51

Has anyone else discovered this weird Sculk Sensor behaviour?

Quasi Connectivity: now i have to change my random building plans.
Approved

Post id:47

Post created :2022-08-01 14:07:05

now i have to change my random building plans.

Quasi Connectivity: Why are they activated
Wating approval

Post id:46

Post created :2022-07-03 10:22:06

Why are they activated

Quasi Connectivity: Can someone explain me why?
Approved

Post id:45

Post created :2022-06-22 20:01:50

Can someone explain me why?

Quasi Connectivity: why is this Sticky Piston being powered?
Approved

Post id:44

Post created :2022-06-22 19:30:45

why is this Sticky Piston being powered?

Quasi Connectivity: Don't understand why the middle and right pistons are getting powered weirdly. the right piston is getting powered somehow but not the middle one? (1.19)
Approved

Post id:9

Post created :2022-06-21 14:24:46

Don't understand why the middle and right pistons are getting powered weirdly. the right piston is getting powered somehow but not the middle one? (1.19)

Quasi Connectivity: This dropper is always powered even tho there is nothing connected to it powering it. Anyone know why?
Approved

Post id:10

Post created :2022-06-19 00:49:10

This dropper is always powered even tho there is nothing connected to it powering it. Anyone know why?

Quasi Connectivity: Budded Piston Problem
Approved

Post id:11

Post created :2022-06-14 19:05:57

Budded Piston Problem

Im trying to make a device that makes the piston extend to make the player transfom into crawl mode but this piston keeps being power. [Circuit](https://preview.redd.it/2d65p6zsxm591.png?width=1297&format=png&auto=webp&v=enabled&s=1d7198c0ac8425767e0cac41ab674481cc673448)

Quasi Connectivity: Can someone tell me why the second piston isn't retracting and how I can get it to?
Approved

Post id:12

Post created :2022-06-13 04:39:24

Can someone tell me why the second piston isn't retracting and how I can get it to?

Quasi Connectivity: why does this configuration work to cause the observer to power the piston? I don't understand where the power for the piston is coming from
Approved

Post id:13

Post created :2022-05-18 05:16:29

why does this configuration work to cause the observer to power the piston? I don't understand where the power for the piston is coming from

Quasi Connectivity: Why doesn't the piston retract when the button is pressed?
Approved

Post id:14

Post created :2022-05-02 04:47:13

Why doesn't the piston retract when the button is pressed?

Quasi Connectivity: Why does the piston power up without a connection? When the button is pressed, a block is placed next to the piston and destroyed. The piston stays activated until a block is placed next to it again
Approved

Post id:15

Post created :2022-05-02 04:44:03

Why does the piston power up without a connection? When the button is pressed, a block is placed next to the piston and destroyed. The piston stays activated until a block is placed next to it again

Quasi Connectivity: Quick question: What the hell is activating the piston on the right?
Approved

Post id:16

Post created :2022-04-30 21:04:26

Quick question: What the hell is activating the piston on the right?

Quasi Connectivity: [HELP] what is powering these pistons???? im so confused as to why the wil not retract
Approved

Post id:17

Post created :2022-04-23 23:04:10

[HELP] what is powering these pistons???? im so confused as to why the wil not retract

Quasi Connectivity: Can anyone explain those weird behaviours?
Approved

Post id:18

Post created :2022-04-17 07:43:58

Can anyone explain those weird behaviours?

Quasi Connectivity: Why is the bottom dispenser activated here? I thought glass was not conductive.
Approved

Post id:19

Post created :2022-04-16 20:25:37

Why is the bottom dispenser activated here? I thought glass was not conductive.

Quasi Connectivity: (New?) Piston bug
Approved

Post id:20

Post created :2022-03-19 18:47:54

(New?) Piston bug

So I discovered this bug where a sticky piston won't spit out its block when a 1 tick pulse is passed on the block over it. It causes the piston NOT to spit out its block on even -y axis values and on all +y axis values. the sticky piston DOES spit out the block on odd -y axis values. Here is a video of it, I have opened the F3 screen during the vid so that you can see what the position of the piston is in the "Targeted block:" part of the F3 menu. I am playing in Minecraft version 1.18.2. No mods. ​ https://reddit.com/link/ti1wzx/video/0cvb4gbxwdo81/player

Quasi Connectivity: How this piston extends, why the note block
Approved

Post id:21

Post created :2022-03-14 18:42:44

How this piston extends, why the note block

Hi!, hope anyone can explain how does this system works. and what function the note block has. Im really new at redstone. Hope you have a cool day. https://preview.redd.it/gm1e7t7n9en81.png?width=1920&format=png&auto=webp&v=enabled&s=25738683041b03a7f61cd059fbe011118f0d56b6

Quasi Connectivity: I know quasi connectivity can be weird but how is the upper piston still powered? (top line is off)
Approved

Post id:22

Post created :2022-02-23 20:26:01

I know quasi connectivity can be weird but how is the upper piston still powered? (top line is off)

Quasi Connectivity: My Dispenser will only function once when the hopper clock goes off. Depending on the position when restarted it will either pick up or place the water. When it is powered the second time it does nothing until reset. Help.
Approved

Post id:23

Post created :2022-02-23 00:55:02

My Dispenser will only function once when the hopper clock goes off. Depending on the position when restarted it will either pick up or place the water. When it is powered the second time it does nothing until reset. Help.

Quasi Connectivity: Please help to understand why does this contraption work the way it does
Approved

Post id:24

Post created :2022-02-22 18:52:47

Please help to understand why does this contraption work the way it does

The contraption is: a note block (random thing to create updates), 2 observers in a row, a sticky piston and a random block The question is: why doesn't it work as expected ( when rotated facing down? https://reddit.com/link/syv63j/video/m9y0izzdkfj81/player

Quasi Connectivity: How do i fix this instant repeater in another java and bedrock server so i can tell the owner any fixes?
Approved

Post id:25

Post created :2022-02-22 12:08:11

How do i fix this instant repeater in another java and bedrock server so i can tell the owner any fixes?

Quasi Connectivity: Question: Why is the bottom-left dropper TRUE here? I don't understand what's powering it
Approved

Post id:26

Post created :2022-02-21 16:07:06

Question: Why is the bottom-left dropper TRUE here? I don't understand what's powering it

Quasi Connectivity: A Machine That Bugs Pistons!
Approved

Post id:27

Post created :2022-02-18 09:17:51

A Machine That Bugs Pistons!

Quasi Connectivity: what in the world is happening here? (p.s: there aren't any redstone power sources underneath the piston)
Approved

Post id:28

Post created :2022-02-16 08:19:22

what in the world is happening here? (p.s: there aren't any redstone power sources underneath the piston)

Quasi Connectivity: Help me fix this bugged wireless repeater
Approved

Post id:29

Post created :2022-02-06 19:50:56

Help me fix this bugged wireless repeater

Quasi Connectivity: Why isn't this dispenser activating?
Approved

Post id:30

Post created :2022-02-01 19:14:13

Why isn't this dispenser activating?

Quasi Connectivity: Can anyone tell me why these Pistons are firing?
Approved

Post id:31

Post created :2022-01-21 17:13:11

Can anyone tell me why these Pistons are firing?

Quasi Connectivity: Why are the pistons staying on? Shouldn't they just pulse when the observers get an update?
Approved

Post id:32

Post created :2021-12-24 01:27:34

Why are the pistons staying on? Shouldn't they just pulse when the observers get an update?

[deleted]

Quasi Connectivity: what
Approved

Post id:33

Post created :2021-12-22 17:13:53

what

I'm trying to learn redstone by going through other people's builds and trying to figure out how they work and I found this mechanism... maybe redstone isn't for me https://reddit.com/link/rm9t2o/video/x3r2aurxm4781/player

Quasi Connectivity: The dropper is being powered whilst minecart with hopper is on detector rail, unloading blocks. The detector rail is on a transparent block and somehow still powering the dropper. Any way to fix this without removing everything and pushing the dropper one block further down?
Approved

Post id:34

Post created :2021-12-18 04:33:18

The dropper is being powered whilst minecart with hopper is on detector rail, unloading blocks. The detector rail is on a transparent block and somehow still powering the dropper. Any way to fix this without removing everything and pushing the dropper one block further down?

Quasi Connectivity: A weird 1.18 bug me and my friend ran into at least I think its a bug can someone explain please?
Approved

Post id:35

Post created :2021-12-08 01:10:13

A weird 1.18 bug me and my friend ran into at least I think its a bug can someone explain please?

Quasi Connectivity: [deleted by user]
Approved

Post id:36

Post created :2021-12-02 21:39:22

[deleted by user]

[removed]

Quasi Connectivity: Hey guys... why does this happen?
Approved

Post id:37

Post created :2021-11-25 06:51:43

Hey guys... why does this happen?

Quasi Connectivity: How is this wireless stick piston even working?
Approved

Post id:38

Post created :2021-11-20 14:54:55

How is this wireless stick piston even working?

Am I missing something? Did I overlook something? Is it because of a (not so) laggy server? Or is there - in the Minecraft redstone rulebook - that I miss a law? I'm new to redstone and am trying to figure out how does piston popout doors work and this happened. https://reddit.com/link/qy76sl/video/n7fgh3c9lr081/player

Quasi Connectivity: please explan !! How piston works??
Approved

Post id:39

Post created :2021-11-20 13:50:22

please explan !! How piston works??

Why piston active but lamp donesn't? explan me please https://preview.redd.it/wokp88gk9r081.png?width=1600&format=png&auto=webp&v=enabled&s=030c4be64656b9060e46d53636da75eb6722321a

Quasi Connectivity: [1.18 Pre-release 5] I'm not quite sure what's going on here, I'm not trained for this situation!
Approved

Post id:40

Post created :2021-11-20 00:22:42

[1.18 Pre-release 5] I'm not quite sure what's going on here, I'm not trained for this situation!

Quasi Connectivity: Since we get posts about "dicovering" QC every other day | Ignore the watermarks, I originally made this for my Instagram page.
Approved

Post id:41

Post created :2021-11-13 12:55:22

Since we get posts about "dicovering" QC every other day | Ignore the watermarks, I originally made this for my Instagram page.

Quasi Connectivity: look at this
Approved

Post id:42

Post created :2021-11-13 03:46:07

look at this

Quasi Connectivity: Does anyone know why this torch is powering the piston
Approved

Post id:43

Post created :2021-11-07 15:13:26

Does anyone know why this torch is powering the piston

Quasi Connectivity: Can someone explain this to me? (Excuse me for the poor quality)
Approved

Post id:8

Post created :2021-10-28 19:59:43

Can someone explain this to me? (Excuse me for the poor quality)

Quasi Connectivity: Can someone explain what the heck is this? Why does it work like that? [Java Edition 1.17.1]
Approved

Post id:7

Post created :2021-08-27 13:07:35

Can someone explain what the heck is this? Why does it work like that? [Java Edition 1.17.1]

Quasi Connectivity: Yup this makes sense
Approved

Post id:6

Post created :2021-07-28 02:46:58

Yup this makes sense

Quasi Connectivity: Can somone explain me why the piston doesn't retract?
Approved

Post id:5

Post created :2021-07-16 16:52:19

Can somone explain me why the piston doesn't retract?

Quasi Connectivity: I have invented wireless Redstone
Approved

Post id:4

Post created :2021-06-17 15:52:53

I have invented wireless Redstone

​ [help](https://preview.redd.it/9dv35ba6lu571.png?width=1920&format=png&auto=webp&v=enabled&s=debc19228c194653c5bb25cea2405fe9ef0ceded)

Quasi Connectivity: Correct me if I'm wrong, but I think I just found a redstone glitch. Could be useful???
Approved

Post id:3

Post created :2021-05-12 02:29:10

Correct me if I'm wrong, but I think I just found a redstone glitch. Could be useful???

Quasi Connectivity: How this works
Approved

Post id:2

Post created :2021-04-06 21:24:14

How this works

not emitting redstone signal if I test it with dust in the same place the piston was. https://preview.redd.it/cyenay3memr61.png?width=285&format=png&auto=webp&v=enabled&s=248d74f30d1759c062dc94a700c31936d71b8c60

Quasi Connectivity: Can someone explain how this works?
Approved

Post id:1

Post created :2020-12-09 15:18:29

Can someone explain how this works?

​ https://reddit.com/link/k9tnn1/video/sv3pkivnh6461/player

View JSON View on GitHub

What is Quasi-Connectivity?

What is Quasi-Connectivity?
Quasi-Connectivity (QC for short) is a behavior related to how blocks are powered on Java Edition only.

Some components (pistons and droppers for example) can be activated in a special way. If there is a source of power either diagonally or two blocks above them, they would be considered “quasi-powered”.

The effectiveness of this powering only takes place once the component gets updated.

What are BUDs?

What are BUDs?
BUD is short for Block Update Detector. It is a technical term for a contraption that reacts to block updates such as blocks being placed or broken for example. BUDs come in many forms, but they all work on the same basic premise: get a block in an invalid state. The BUD is then “primed” and will trigger when the block receives a block update.

For example, placing a block (usually) only causes block updates to the six blocks around. This means you can turn a piston into a BUD by placing a redstone block two blocks above it. It will not update the piston, but the redstone block will QC-power the piston. When the piston gets a block update from elsewhere, it will start extending.

BUD examples

BUD examples
Top image: BUD without QC
The piston was powered when unable to push keeping it in an unstable state.

Bottom image: BUD with QC
The piston is BUDded diagonal. Note: the block on the left is necessary here.

QC applications

QC applications
These are the blueprints for a simple door commonly referred to as the “Jeb door”.

This is a 2x2 flush door that uses 12 sticky pistons to open a passage through a wall.
It first appeard here in August 2011 during the 1.7 release of the Beta edition.

Credits

Nano

Membre du help : Nano

Cmoa

Membre du help : Cmoa

SpaceWalker

Membre du help : SpaceWalker

Feenix

Membre du help : Feenix

Storm_

Membre du help : Storm_